It uses the Xross Media Bar (XMB) as its user interface, similar to the Play Station 3 console.
The battery must be at least 50% charged or else the system will prevent the update from installing.
If the power supply is lost while writing to the system software, the console will no longer be able to operate unless the system is booted in service mode or sent to Sony for repair if still under warranty.
Parents can limit content by enabling Browser Start Up Control which blocks all access to the web browser and creating a 4-digit PIN under [Settings] in [Security].
Additionally, the browser can be configured to run under a proxy server and can be protected by the security PIN to enable the use of web filtering or monitoring software through a network.
The browser also has limited tabbed browsing, with a maximum of three tabs.
When a website tries to open a link in a new window, the browser opens it in a new tab.
Alternatively, Homebrew has allowed a custom version of the browser to be released that utilizes all 32/64 MB of the PSP's RAM, which allows the browser to load pages faster and have more memory for larger pages.
Opera Mini can also be used on PSP through PSPKVM, a homebrew application which is a Sun Java Virtual Machine.
Users may navigate among these options by using the up and down buttons of the D-pad.
The basic features offered by XMB implementations varies based on device and software version.
The version 2.50 upgrade added Unicode (UTF-8) character encoding and Auto-Select as options in the browser's encoding menu, and also introduced the saving of input history for online forms.